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Installation and Operation Manual for Talk-A-Phone Voice Over IP Interface

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Installation and Operation Manual for Talk-A-Phone Voice Over IP Interface • Emergency & Information Phones • Access Phones • Intercom Systems • Area of Rescue Systems Installation and Operation Manual for Talk-A-Phone Voice over IP Interface VOIP-1-2-4-8 Talk-A-Phone Co. Rev. 7-27-09 7530 North Natchez Avenue Niles, Illinois 60714-3804 Phone: (773) 539-1100 Fax: (773) 539-1241 e-mail: [email protected] http://www.talkaphone.com All Specifications and other information are subject to change without notice. © 2009 Talk-A-Phone Co. All rights reserved. Talk-A-Phone, Talk-A-Lert, Scream Alert and WEBS are registered trademarks of Talk-A-Phone Co. Windows is a registered trademark of Microsoft Corporation. All other trademarks are the property of their respective owners. Talk-A-Phone Co. VOIP-1-2-4-8 Interface CHAPTER 1 Introduction to Voice over IP Interfaces (VOIP-1, VOIP-2, VOIP-4, & VOIP-8) The Voice over IP (VoIP) Interface allows all Talk-A-Phone Emergency Phones to be used over an IP data network. The VOIPs integrate seamlessly with existing VoIP phone systems, and support standard VoIP protocols. For sites without existing VoIP systems, two VOIPs can be used in conjunction to send emergency calls over the IP network and then remotely “jump off” onto an existing PBX or PSTN phone network. Figure 1-1: VOIP-1 Chassis Figure 1-2: VOIP-2 Chassis Figure 1-3: VOIP-4/VOIP-8 Chassis Capacity. Talk-A-Phone’s VOIP-8 model is an eight-channel unit, the model VOIP-4 is a four-channel unit, the model VOIP-2 is a two-channel unit, and the VOIP-1 is a single-channel unit. All of these VoIP units have a 10/100Mbps Ethernet interface and a command port for configuration. Mounting. Mechanically, the VOIP-4 and VOIP-8 units are designed for a one-high industry-standard EIA 19-inch rack enclosure. By contrast, the VOIP-1 and the VOIP-2 are not rack mountable. Phone System Transparency. These VOIP-1-2-4-8s interoperate with a telephone switch or PBX, acting as a switching device that directs voice and fax calls over an IP network. The VOIP-1-2-4-8 units have “phonebooks,” directories that determine to whom calls may be made and the sequences that must be used to complete calls through the VOIP-1-2-4-8. The phonebooks allow the phone user to interact with the VOIP system just as they would with an ordinary PBX or telco switch. When the phonebooks are set, special dialing sequences are minimized or eliminated altogether. Once the call destination is determined, the phonebook settings determine whether the destination VOIP unit must strip off or add dialing digits to make the call appear at its destination to be a local call. H. 323, SIP, & SPP. Being H.323 compatible, the VOIP-1-2-4-8 units can place calls to telephone equipment at remote IP network locations that also contain H.323 compatible voice-over-IP gateways. It will interface with H.323 software and H.323 gatekeeper units. H.323 specifications also bring to VoIP telephony many special features common to conventional telephony. H.323 features of this kind that have been implemented into the VOIP-1-2-4-8 units include Call Hold, Call Waiting, Call Identification, Call Forwarding (from the H.450 standard), and Call Transfer (H.450.2 from H.323 Version 2). The fourth version of the H.323 standard improves system resource usage 2 Talk-A-Phone Co. VOIP-1-2-4-8 Interface (esp. logical port or socket usage) by handling call signaling more compactly and allowing use of the low-overhead UDP protocol instead of the error-correcting TCP protocol where possible. The VOIP-1-2-4-8 is also SIP-compatible. (“SIP” means Session Initiation Protocol.) However, H.450 Supplementary Services features can be used under H.323 only and not under SIP. It can register with SIP proxy servers and call managers that are 100% SIP-compliant. SPP (Single-Port Protocol) is a non-standard protocol that offers advantages in certain situations, especially when firewalls are used and when dynamic IP address assignment is needed. However, when SPP is used, certain features of SIP and H.323 will not be available and SPP will not interoperate with VoIP systems using H.323 or SIP. Data Compression & Quality of Service. The VOIP-1-2-4-8 unit comes equipped with a variety of data compression capabilities, including G.723, G.729, and G.711 and features DiffServ quality-of-service (QoS) capabilities. PSTN Failover Feature. The VOIP-2-4-8 can be programmed to divert calls to the PSTN temporarily in case the IP network fails. Enabling this feature will require a dedicated channel, therefore a VOIP-1 does not have the PSTN failover feature. Management. Configuration and system management can be done locally with the VOIP-1-2-4-8 configuration software via a serial connection. After an IP address has been assigned locally, other configuration can be done remotely using the Web Interface GUI. All of these control software packages are included on the VOIP-1-2-4-8 CD. While the Web GUI’s appearance differs slightly, its content and organization are essentially the same as that of the Windows GUI (except for logging). The primary advantage of the Web GUI is remote access for control and configuration. The controller PC and the VOIP-1-2-4-8 unit itself must both be connected to the same IP network and their IP addresses must be known. The Windows GUI gives access to commands via icons and pulldown menus, whereas the Web GUI does not. The Web GUI, however cannot perform logging in the same direct mode done in the Windows GUI. However, when the Web GUI is used, logging can be done by e-mail (SMTP). Figure 1-4: VOIP Interface Windows GUI (left) and Web Interface GUI (right) Once you’ve begun using the web browser GUI, you can go back to the Windows GUI at any time. However, you must log out of the web browser GUI before using the Windows GUI. Logging of System Events. The software for the VOIP-1-2-4-8 units has SysLog Server functionality. SysLog is a de facto standard for logging events in network communication systems. 3 Talk-A-Phone Co. VOIP-1-2-4-8 Interface Figure 1-5: Syslog Functionality in VOIP-1-2-4-8 Interface Units The SysLog Server resides in the VOIP-1-2-4-8 unit itself. To implement this functionality, you will need a SysLog client program (sometimes referred to as a “daemon”). Supplementary Telephony Services. The H.450 standard (an addition to H.323) brings to VoIP telephony more of the premium features found in PSTN and PBX telephony. VOIP-1-2-4-8 units offer five of these H.450 features: Call Transfer, Call Hold, Call Waiting, Call Name Identification (not the same as Caller ID), and Call Forwarding. (The first four features are found in the “Supplementary Services” window; the fifth, Call Forwarding, appears in the Add/Edit Inbound phonebook screen.) Note that the first three features are closely related. All of these H.450 features are supported for H.323 operation only; they are not supported for SIP or SPP. 4 Talk-A-Phone Co. VOIP-1-2-4-8 Interface VOIP-1-2-4-8 Front Panel LEDs LED Types. The VOIP-1-2-4-8 units have two types of LEDs on their front panels: (1) general operation LED indicators (for power, booting, and Ethernet functions), and (2) channel operation LED indicators that describe the data traffic and performance in each VoIP data channel. Active LEDs. On both the VOIP-4 and VOIP-8, there are eight sets of channel-operation LEDs. However, on the VOIP-4, only the lower four sets of channel-operation LEDs are functional. On the VOIP-8, all eight sets are functional. Figure 1-6. VOIP-4/VOIP-8 LEDs Similarly, the VOIP-2 has the general-operation indicator LEDs and two sets of channel-operation LEDs, one for each channel. Figure 1-7. VOIP-2 LEDs Finally, the VOIP-1 has the general-operation indicator LEDs and a set of channel-operation LEDs for its single VoIP channel. Figure 1-8. VOIP-1 LEDs 5 Talk-A-Phone Co. VOIP-1-2-4-8 Interface VOIP-1 LED Description VOIP-1 Front Panel LED Definitions LED NAME DESCRIPTION General Operation LEDs Power Indicates presence of power. Boot After power up, the Boot LED will be on briefly while the VOIP-1 is booting. It lights whenever the VOIP-1 is booting or downloading a setup configuration data set. Ethernet FDX. LED indicates whether Ethernet connection is half- duplex or full-duplex (FDX) and, in half-duplex mode, indicates occurrence of data collisions. LED is on constantly for full-duplex mode; LED is off constantly for half-duplex mode. When operating in half-duplex mode, the LED will flash during data collisions. LNK. Link/Activity LED. This LED is lit if Ethernet connection has been made. It is off when the link is down (i.e., when no Ethernet connection exists). While link is up, this LED will flash off to indicate data activity. Channel-Operation LEDs TX Transmit. This indicator blinks when voice packets are being transmitted to the local area network. RX Receive. This indicator blinks when voice packets are being received from the local area network. XS Transmit Signal. This indicator lights when the FXS- configured channel is off-hook or the FXO-configured channel is receiving a ring from the Telco or PBX.
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